/Engine/Source/Editor/Kismet/Public/SFilterableObjectList.h
class SFilterableObjectList : public [SCompoundWidget](API\Runtime\SlateCore\Widgets\SCompoundWidget)
TArray<UObject...
FilteredObjectList
List of objects to show that have passed the keyword filtering
TSharedPtr<SSe...
FilterTextBoxWidget
Widget containing the filtering text box
TArray<UObject...
LoadedObjectList
List of objects that can be shown
TSharedPtr<SLi...
ObjectListWidget
Widget containing the object list